1117952397 has 24 divisors (see below), whose sum is σ = 1631258720. Its totient is φ = 737748000.

The previous prime is 1117952393. The next prime is 1117952401. The reversal of 1117952397 is 7932597111.

It is a happy number.

1117952397 is a `hidden beast` number, since 1 + 117 + 9 + 523 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1117952393) and next prime (1117952401).

It is not a de Polignac number, because 1117952397 - 2² = 1117952393 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117952393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495522 + ... + 497772.

Almost surely, 2^1117952397 is an apocalyptic number.

It is an amenable number.

1117952397 is a deficient number, since it is larger than the sum of its proper divisors (513306323).

1117952397 is a wasteful number, since it uses less digits than its factorization.

1117952397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2790 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 1117952397 is about 33435.7951453229. The cubic root of 1117952397 is about 1037.8655672517.

The spelling of 1117952397 in words is "one billion, one hundred seventeen million, nine hundred fifty-two thousand, three hundred ninety-seven".